Fireplace insert



FIG. 1 is a front elevational view of a fireplace insert, showing my new design;

FIG. 2 is a rear elevational view of the burner;

FIG. 3 is a top plan view of the burner;

FIG. 4 is a bottom plan view of the burner;

FIG. 5 is a side elevational view of the burner;

FIG. 6 is a front elevational view of the burner with the front doors open; and,

FIG. 7 is a perspective view thereof, shown with one door open.

The screen-like member has been shown fragmentarily in FIG. 1 for clarity of disclosure. 

The ornamental design for a fireplace insert, as shown and described. 